Showing posts with label solar power. Show all posts
Showing posts with label solar power. Show all posts

Aug 4, 2013

Book Review: Green Illusions

Latest book I read was Green Illusions by Ozzie Zehner. For once it was a book I have no preconceptions and I didn't really have a clue what was coming. I don't even know how I actually picked it up and ordered it, but I'm glad I did.

Green Illusions is a book explaining what current green initiatives there are ongoing in the world and why many of those will never solve the actual problem of us ruining the globe. It goes through in very detail solar power, wind power and all other electricity based green thinking ventures.

Book is provocative and maybe even exaggerating about some of the things, but it definitely makes people think. Raising thought is the sole purpose of the book, so I at least forgive the colorful and bit overstating way on looking at these things. I don't believe all the things are so black and white as proposed in the book, but I do undersign most of the thoughts from the book.

Book goes beyond normal green thinking philosophies as it talks about women's rights, population growth, cutting consumption and lot more. It is a comprehensive look on what the problems currently are, why the current solutions don't work and what are the best things to start with for the future.

It is an excellent book and really glad I read it. It is bit too much looking the world from American perspective, but that is understandable from the writers background and also because US is big part of the problem and the solution.

I recommend this book to everyone. I don't see who shouldn't read this. I really hope this raises thoughts within everyone's head. Maybe this book gets people to not to buy the second car or from building too big house or even cutting the trees from shadowing houses. It is provocative book and no one should buy everything from the book without thinking, but there's a lot to learn for everyone here. Please read it.

Written by +Henri Hämäläinen

Mar 30, 2011

First boat to go around the globe with only solar power

There has been for a half a year already expedition ongoing to go around the world with boat using only solar power. They have already got half way around the world and are currently heading from Central-America to Australia.

Using solar power for boats makes lot of sense and definitely will be the way to go in future. Sea and sun goes well together and specifically for leisure purposes these kind of boats seem great. Hopefully also soon in the future there would be enough capacity to carry cargo with those. If you are interested go to see the details from their website and see the route and lot more info with videos and maps about journey. 


Here's the boat details from their website:

Technology
PlanetSolar is a catamaran that runs solely on the energy found in light. Additional removable parts allow it to expose a total of 537 m2 of photovoltaic modules (solar panels) to the sun. This impressive data makes it the biggest solar-powered ship in the world. 
  • Legnth: 31 m
  • Width: 15 m
  • Length with flaps: 35 m
  • Width with flaps: 23 m
  • Height: 6.1 m
  • Draft: 1.55 m
  • Weight: 95 t
  • Surface area of solar modules: 537 m2
  • PV panel efficiency: 18.8%
  • Installed PV power: 93.5 kW (127.0 hp)
  • Average engine consumption: 20 kW (26.8 hp)
  • Crew: 6 people
  • Number of people that can go on board: 40
  • Autonomy: never-ending solar navigation
Written by +Henri Hämäläinen